Παραπομπή σε μορφή APA (7η εκδ.)
Meeting of National Focal Points for Specially Protected Areas (4th : 12-14 April 1999 : Tunis), UNEP, & UNEP. (1998). Report of the fourth Meeting of the National focal points for specially protected areas: Tunis, 12-14 April 1999. UNEP.
Παραπομπή σε μορφή Chicago (17η εκδ.)
Meeting of National Focal Points for Specially Protected Areas (4th : 12-14 April 1999 : Tunis), UNEP, και UNEP. Report of the Fourth Meeting of the National Focal Points for Specially Protected Areas: Tunis, 12-14 April 1999. UNEP, 1998.
Παραπομπή σε μορφή MLA (9th εκδ.)
Meeting of National Focal Points for Specially Protected Areas (4th : 12-14 April 1999 : Tunis), et al. Report of the Fourth Meeting of the National Focal Points for Specially Protected Areas: Tunis, 12-14 April 1999. UNEP, 1998.
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